Ex 10.2, 6 (i) - Chapter 10 Class 7 Algebraic Expressions

Last updated at August 13, 2026 by

Ex 10.2, 6 - Simplify expressions & find the value if x is equal to 2 - Ex 10.2

Remove Ads
Teachoo · Class 7 Explore Class 7

Transcript

Ex 10.2, 6 Simplify the expressions and find the value if x is equal to 2 (i) x + 7 + 4 (x – 5) x + 7 + 4(x – 5) = x + 7 + 4x – 20 = 5x – 13 Putting x = 2 = 5 × 2 – 13 = 10 – 13 = −3

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh is an IIT Kanpur graduate and has been teaching for 16+ years. At Teachoo, he breaks down Maths, Science and Computer Science into simple steps so students understand concepts deeply and score with confidence.

Many students prefer Teachoo Black for a smooth, ad-free learning experience.